Sometimes it turns out, in the middle of packing your bags, that you can’t really fit all your worldly possessions in the baggage allowance you bought when booking your flight. Other times you want to carry items that are not allowed in the passenger cabin.
Most airlines allow you to purchase additional baggage allowance. The fees and conditions depend on the carrier you’re traveling with.
Cheaper than at the check-in desk
An additional baggage allowance can also be purchased at the airport, but the costs can be really expensive depending on the airline you’re flying with.